700 Amp Cable Size at 500 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 16.21V (2.35%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 53.5V (7.75%)
Voltage at Load673.8 VLine Loss: 19661.2 W
Max Power & Breaker836.58 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 500m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 8648.71 V (1253.44%) | 0.0 V | 14266.33 V (2067.58%) | 10486000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 5189.22 V (752.06%) | 0.0 V | 8559.8 V (1240.55%) | 6291600.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 3243.27 V (470.04%) | 0.0 V | 5349.87 V (775.34%) | 3932250.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 2162.18 V (313.36%) | 0.0 V | 3566.58 V (516.9%) | 2621500.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1297.31 V (188.02%) | 0.0 V | 2139.95 V (310.14%) | 1572900.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 810.82 V (117.51%) | 0.0 V | 1337.47 V (193.84%) | 983062.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 518.92 V (75.21%) | 171.1 V | 855.98 V (124.06%) | 629160.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 370.66 V (53.72%) | 319.3 V | 611.41 V (88.61%) | 449400.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 259.46 V (37.6%) | 430.5 V | 427.99 V (62.03%) | 314580.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 185.33 V (26.86%) | 504.7 V | 305.71 V (44.31%) | 224700.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 136.56 V (19.79%) | 553.4 V | 225.26 V (32.65%) | 165568.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 108.11 V (15.67%) | 581.9 V | 178.33 V (25.84%) | 131075.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 86.49 V (12.53%) | 603.5 V | 142.66 V (20.68%) | 104860.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 70.12 V (10.16%) | 619.9 V | 115.67 V (16.76%) | 85021.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 54.05 V (7.83%) | 635.9 V | 89.16 V (12.92%) | 65537.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 43.24 V (6.27%) | 646.8 V | 71.33 V (10.34%) | 52430.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 32.43 V (4.7%) | 657.6 V | 53.5 V (7.75%) | 39322.5 W | Drop High |
FAQ — 700 Amp Cable Size at 500 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 700A at 500 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 700A over 500m at 690V (voltage drop: 16.21V or 2.35%).
What is the power capacity of 700A at 690V?
At unity power factor, 700A at 690V supports 836.58 kW with a standard 700A circuit breaker.
Related Lengths & Currents (690V)
700A · 5m (690V)700A · 10m (690V)700A · 15m (690V)700A · 20m (690V)700A · 25m (690V)700A · 30m (690V)700A · 35m (690V)700A · 40m (690V)700A · 45m (690V)700A · 50m (690V)700A · 60m (690V)700A · 70m (690V)10A · 500m (690V)16A · 500m (690V)20A · 500m (690V)25A · 500m (690V)32A · 500m (690V)40A · 500m (690V)50A · 500m (690V)63A · 500m (690V)80A · 500m (690V)100A · 500m (690V)125A · 500m (690V)160A · 500m (690V)200A · 500m (690V)